INFO: task syz-executor.5:5755 can't die for more than 143 seconds.
task:syz-executor.5  state:D stack:26656 pid: 5755 ppid:  3642 flags:0x00004006
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:4986 [inline]
 __schedule+0xab2/0x4d90 kernel/sched/core.c:6296
 schedule+0xd2/0x260 kernel/sched/core.c:6369
 schedule_timeout+0x14a/0x2a0 kernel/time/timer.c:1881
 reclaim_throttle+0x1ce/0x5e0 mm/vmscan.c:1072
 consider_reclaim_throttle mm/vmscan.c:3399 [inline]
 shrink_zones mm/vmscan.c:3486 [inline]
 do_try_to_free_pages+0x7cd/0x1620 mm/vmscan.c:3541
 try_to_free_mem_cgroup_pages+0x2cd/0x840 mm/vmscan.c:3855
 try_charge_memcg+0x298/0x10f0 mm/memcontrol.c:2598
 obj_cgroup_charge_pages+0x1e/0x90 mm/memcontrol.c:3018
 __memcg_kmem_charge_page+0x368/0x5a0 mm/memcontrol.c:3045
 __alloc_pages+0x1da/0x500 mm/page_alloc.c:5393
 __alloc_pages_node include/linux/gfp.h:566 [inline]
 alloc_pages_node include/linux/gfp.h:589 [inline]
 bpf_ringbuf_area_alloc kernel/bpf/ringbuf.c:96 [inline]
 bpf_ringbuf_alloc kernel/bpf/ringbuf.c:133 [inline]
 ringbuf_map_alloc kernel/bpf/ringbuf.c:172 [inline]
 ringbuf_map_alloc+0x2cb/0x7b0 kernel/bpf/ringbuf.c:148
 find_and_alloc_map kernel/bpf/syscall.c:127 [inline]
 map_create kernel/bpf/syscall.c:864 [inline]
 __sys_bpf+0xc12/0x5970 kernel/bpf/syscall.c:4615
 __do_sys_bpf kernel/bpf/syscall.c:4737 [inline]
 __se_sys_bpf kernel/bpf/syscall.c:4735 [inline]
 __x64_sys_bpf+0x75/0xb0 kernel/bpf/syscall.c:4735
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f660a7d4e99
RSP: 002b:00007f660914a168 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 00007f660a8e7f60 RCX: 00007f660a7d4e99
RDX: 0000000000000040 RSI: 0000000020000040 RDI: 0000000000000000
RBP: 00007f660a82f031 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffeedf83cef R14: 00007f660914a300 R15: 0000000000022000
 </TASK>

Showing all locks held in the system:
1 lock held by khungtaskd/27:
 #0: ffffffff8bb818a0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 kernel/locking/lockdep.c:6460
1 lock held by klogd/2962:
 #0: ffff8880b9c39c98 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2b/0x120 kernel/sched/core.c:489
2 locks held by getty/3281:
 #0: ffff88814b287098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:244
 #1: ffffc90002b962e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xcf0/0x1230 drivers/tty/n_tty.c:2077

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